body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}
.container {
    display: flex;
    height: 100vh;
    flex-direction: row;
}
.left {
    width: 15%;
    background-color: #f2f2f2;
    padding: 20px;
    box-sizing: border-box;
}
.right {
    background-color: #fff;
    width: 85%;
    padding: 20px;
    box-sizing: border-box;
}
.right_top {
    width: 85%;height: 20%;border-bottom: #2DCA98 1px solid;margin-bottom: 1%;
}
.right_bot {
    border-top: #2DCA98 1px solid;
    width: 85%;
    height: 75%;
    overflow-y: auto;
    display: none;
}
.left h2 {
    margin-top: 0;
}
.left ul {
    padding: 0;
    margin-top: 20px;
    list-style: none;
}
.left li {
    margin-bottom: 10px;
}
.left li a {
    text-decoration: none;
    color: #000;
}
.left li a:hover {
    color: #1a1aff;
}
.right h2 {
    margin-top: 0;
}
.right p {
    line-height: 1.5;
}